bg_fa_plugin_s Struct Reference
[A/V Filters]

Audio filter plugin. More...

#include <plugin.h>


Data Fields

bg_plugin_common_t common
 Infos and functions common to all plugin types.
void(* connect_input_port )(void *priv, bg_read_audio_func_t func, void *data, int stream, int port)
 Set input callback.
void(* set_input_format )(void *priv, gavl_audio_format_t *format, int port)
 Set input format.
void(* reset )(void *priv)
 Reset.
void(* get_output_format )(void *priv, gavl_audio_format_t *format)
 Get output format.
int(* need_restart )(void *priv)
 Report, if the plugin must be reinitialized.
bg_read_audio_func_t read_audio
 Read audio samples from the plugin.


Detailed Description

Audio filter plugin.


Field Documentation

Infos and functions common to all plugin types.

void(* bg_fa_plugin_s::connect_input_port)(void *priv, bg_read_audio_func_t func, void *data, int stream, int port)

Set input callback.

Parameters:
priv The handle returned by the create() method
func The function to call
data The private handle to pass to func
stream The stream argument to pass to func
port The input port of the plugin

void(* bg_fa_plugin_s::set_input_format)(void *priv, gavl_audio_format_t *format, int port)

Set input format.

Parameters:
priv The handle returned by the create() method
format Format
port The input port of the plugin
The input format can be changed by the plugin. Make sure that you have a format converter before the filter.

void(* bg_fa_plugin_s::reset)(void *priv)

Reset.

Parameters:
priv The handle returned by the create() method
Optional, resets internal state, as if no frame has been processed before.

Get output format.

Parameters:
priv The handle returned by the create() method
format Returns the output format
These must be called after init().

int(* bg_fa_plugin_s::need_restart)(void *priv)

Report, if the plugin must be reinitialized.

Parameters:
priv The handle returned by the create() method
Returns:
1 if the plugin must be reinitialized, 0 else
Optional, must be called after set_parameter() to check, if the filter must be reinitialized. Note, that the input and output formats can be changed in this case as well.

Read audio samples from the plugin.


The documentation for this struct was generated from the following file:

Generated on Sat Aug 22 00:44:56 2009 for gmerlin by  doxygen 1.5.9